NEED ADVICE!!!

Lillian
So I started to have feelings for my best friends brother a while ago and we became a thing and he kept telling me he wanted a relationship. I lost my virginity to him. (I know it was stupid and he lied) However, I keep talking to him and he keeps ignoring me and now I've gotten really attached. He tells me that he sometimes wants me but then he changes his mind and now I have gotten mass feelings for him. What do I do????